Z-wave not starting after update to HAOS 15.2 and Core 15.4.3

Hi everyone.

Had a running z-wave installation before (z-wave js ui - latest version) and then decided to update to HAOS 15.2 and after that to Core 15.4.3.

Now the z-wave add-on doesn’t start anymore.
Got error message ‚failed to connect to host core-zwave-js:3000 …‘
Do I have to change any settings after the updates?
No z-wave devices are available in HA.
In z-wave js ui I can see them though. Controller seems up and running (at least that is what z-wave js ui shows me).

Any hints are highly appreciated.
Thanks in advance.

Edit:
Some more (important) information I forgot to mention previously:
Running on RPi 5 with 8GB.
Restarted HA after the updates.
First time z-wave controller was marked as ‚unresponsive‘ by z-wave js ui and the network graph was all broken.
Then I rebooted the RPi completely. Then z-wave js ui worked again. Network graph was up again and controller ‚ready‘.
Just the z-wave add-on doesn’t start and so no z-wave devices are available in HA.

Next edit:
Of course it is the Z-Wave integration which is not starting. Not the add-on. Silly me….

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Fixed it myself :slight_smile:

Maybe for someone with similar issues:

After update the websocket was wrong.
I put in ws://a0d7b954-zwavejs2mqtt:3000/

Now everything seems fine again.

Happy easter.

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